Sir: One of the war tactics mentioned in The Art of War by Sun Tzu is that the fighting force should appear to be scattered and weak before the enemy when in fact the force is united and strong. I have a feeling that Imran Khan and Tahirul Qadri, through backdoor diplomacy, have agreed to be united against the government in the upcoming events but using Sun Tzu’s strategy, they are pretending to be at a distance from each other. However, the appreciable thing is that the prime minister has instructed the concerned quarters to refrain from creating any hurdles in the way of Pakistan Tehreek-e-Insaaf’s long march on August 14th. Hamza Gillani Lahore